# Level Four

Four levels deep: `/examples/nested/level-two/level-three/level-four/`

## How Deep Can You Go?

As deep as your filesystem allows. Each folder can contain:

- Content files (`.md`, `.html`, `.php`)
- Subdirectories (which become sub-URLs)
- Assets (images, PDFs, etc.)
- A `metadata.ini` file
- A `styles.css` file for page-specific styles

## Navigation

There's no automatic breadcrumb generation in the default theme, but you can add it in a custom template by parsing the URL path.

## Use Cases

**Documentation sites** – Organize by category/subcategory/topic

**Photo galleries** – Year/month/album/photo

**Course content** – Course/module/lesson/exercise

**Product catalogs** – Category/subcategory/product

The simplicity of file-based routing means your content organization is transparent and portable.